Enjoy a productive day in the office when you keep your beverage in this ergonomic office mug. It is an excellent companion for your daily office routine as it contains a polypropylene material with double wall construction to ensure proper insulation for hot or cold beverages. It has other features efficiency promoting features including a snap-on, spill-resistant, 2 piece thumb-slide Lid. Another important feature of this cup to uphold its culture of style and efficiency is the tough rubber.